{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222630",
    "entityType": "User",
    "nonce": "0x569a2e6f025f0843b6ef0aa397c8fa0ba38362edbdd877483c48f0422a268fdd",
    "signature": "0xb8f72be4a8ab52a08438b1f57a16a20290e99d48c4b8b88371319a88e9f72e8112824a298433ffe769b831a1e0eefb2883fadd5a823c228376ee9a9ed74b21b01c",
    "signer": "0xD45eA8Cf50fb8eaCDeC2649A53a5C43457255fC4",
    "userId": "813324888"
  }
}